At an altitude of 30,000 feet, the atmospheric pressure is significantly lower than at sea level, typically around 4.3 pounds per square inch (psi) or approximately 29.3 inches of Mercury (inHg). This equates to about 0.14 times the standard atmospheric pressure at sea level, which is 1013.25 hPa. The decrease in pressure is due to the thinning of the atmosphere as altitude increases.
Standard atmospheric pressure at sea level is about 14.7 PSI. So, then what is the pressure at about 5,645 feet below the surface of the earth?
At an altitude of 10 kilometers (about 33,000 feet), the air pressure is significantly lower than at sea level, typically around 26.5 kPa (kilopascals) or about 0.26 atmospheres. This reduction in pressure is due to the decreasing density of air as altitude increases. At this height, the air is also much colder and less oxygen is available, which can affect breathing for humans without supplemental oxygen.
On October 22, 1922, Earhart flew her Airster to an altitude of 14,000 feet setting a world record for female pilots.
On October 1922, she set a women's altitude record of 14,000 feet which was later broken by Ruth Nichols.
The elevation of Studio City, CA is 610 feet.
The altitude corresponding to an atmospheric pressure of 500 millibars can vary depending on local weather conditions. On average, 500 millibars typically corresponds to an altitude of around 18,000 feet or 5,500 meters above sea level.
At 30,000 feet above sea level, the boiling point of water is approximately 182°F or 83.3°C. This is because the atmospheric pressure decreases with increasing altitude, causing water to boil at a lower temperature.
The atmoshperic pressure at 18,000 feet above sea level is 280 mm Hg.
The atmospheric pressure at sea level is typically around 760 mmHg. As you increase in altitude above sea level, the atmospheric pressure decreases. For example, at 5,000 feet above sea level, the atmospheric pressure may be around 625 mmHg.
1,700-foot decrease.
At 10,000 feet, the atmospheric pressure is approximately 70% of the pressure at sea level. This is because air pressure decreases with increasing altitude due to the weight of the air above pressing down.
In very rough figures the B-29s were flying at about 30000 feet of altitude when they dropped the bombs and the bombs exploded at about 1500 feet of altitude. You can estimate from there.
The atmospheric pressure at the bottom of the Grand Canyon is approximately 90 kPa (kilopascals), which is slightly lower than the standard atmospheric pressure at sea level (about 101.3 kPa). This decrease in pressure is primarily due to the elevation of the Grand Canyon, which is about 1,200 meters (around 4,000 feet) above sea level. As altitude increases, the atmospheric pressure decreases, resulting in the lower pressure observed at the canyon's depth.
Usually, all commercial jet aircraft cruise between 30000 and 40000 feet.
La Paz, Bolivia, is situated at a high altitude of approximately 3,650 meters (about 11,975 feet) above sea level. At this elevation, the atmospheric pressure is significantly lower than at sea level, typically around 60-65% of atmospheric pressure at sea level. Therefore, the fraction of atmospheric pressure at sea level that is present in La Paz is roughly 0.6 to 0.65.
Ignoring the variations in moving air masses, atmospheric pressure decreases steadily with altitude. A higher altitude will always have a lower air pressure, becoming virtually zero (less than 1 kPa) at around 33 kilometers of altitude, or 108,000 feet above MSL. There are still enough molecules in the thermosphere to cause atmospheric drag on satellites in Low Earth Orbit, up to about 500 km (310 miles).
water for example.absolute pressure; gauge pressure; atmospheric pressure